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<?php |
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namespace Mouf\Database\TDBM; |
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use Doctrine\DBAL\Statement; |
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/* |
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Copyright (C) 2006-2016 David Négrier - THE CODING MACHINE |
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This program is free software; you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation; either version 2 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program; if not, write to the Free Software |
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
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*/ |
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/** |
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* Iterator used to retrieve results. It behaves like an array. |
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*/ |
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class InnerResultArray extends InnerResultIterator |
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{ |
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/** |
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* The list of results already fetched. |
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* |
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* @var AbstractTDBMObject[] |
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*/ |
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private $results = []; |
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/** |
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* Whether a offset exists. |
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* |
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* @link http://php.net/manual/en/arrayaccess.offsetexists.php |
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* |
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* @param mixed $offset <p> |
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* An offset to check for. |
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* </p> |
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* |
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* @return bool true on success or false on failure. |
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* </p> |
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* <p> |
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* The return value will be casted to boolean if non-boolean was returned |
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* |
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* @since 5.0.0 |
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*/ |
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public function offsetExists($offset) |
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{ |
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try { |
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$this->toIndex($offset); |
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} catch (TDBMInvalidOffsetException $e) { |
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return false; |
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} |
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return true; |
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} |
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/** |
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* Offset to retrieve. |
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* |
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* @link http://php.net/manual/en/arrayaccess.offsetget.php |
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* |
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* @param mixed $offset <p> |
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* The offset to retrieve. |
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* </p> |
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* |
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* @return mixed Can return all value types |
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* |
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* @since 5.0.0 |
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*/ |
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public function offsetGet($offset) |
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{ |
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$this->toIndex($offset); |
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return $this->results[$offset]; |
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} |
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private function toIndex($offset) |
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{ |
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if ($offset < 0 || filter_var($offset, FILTER_VALIDATE_INT) === false) { |
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throw new TDBMInvalidOffsetException('Trying to access result set using offset "'.$offset.'". An offset must be a positive integer.'); |
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} |
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if ($this->statement === null) { |
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$this->executeQuery(); |
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} |
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while (!isset($this->results[$offset])) { |
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$this->next(); |
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if ($this->current === null) { |
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throw new TDBMInvalidOffsetException('Offset "'.$offset.'" does not exist in result set.'); |
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} |
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} |
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} |
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public function next() |
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{ |
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// Let's overload the next() method to store the result. |
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if (isset($this->results[$this->key + 1])) { |
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++$this->key; |
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$this->current = $this->results[$this->key]; |
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} else { |
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parent::next(); |
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if ($this->current !== null) { |
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$this->results[$this->key] = $this->current; |
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} |
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} |
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} |
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/** |
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* Overloads the rewind implementation. |
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* Do not reexecute the query. |
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*/ |
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public function rewind() |
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{ |
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if (!$this->fetchStarted) { |
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$this->executeQuery(); |
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} |
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$this->key = -1; |
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$this->next(); |
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} |
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} |
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thecodingmachine /
database.tdbm
